add workaround for clang bug, Rejecting captures of structured bindings in generic lambdas in C++20

chromium-113-workaround_clang_bug-structured_binding.patch

@@ -0,0 +1,30 @@
+diff -up chromium-113.0.5672.63/third_party/blink/renderer/core/layout/ng/grid/ng_grid_layout_algorithm.cc.me chromium-113.0.5672.63/third_party/blink/renderer/core/layout/ng/grid/ng_grid_layout_algorithm.cc
+--- chromium-113.0.5672.63/third_party/blink/renderer/core/layout/ng/grid/ng_grid_layout_algorithm.cc.me	2023-05-03 16:30:34.244612573 +0200
++++ chromium-113.0.5672.63/third_party/blink/renderer/core/layout/ng/grid/ng_grid_layout_algorithm.cc	2023-05-03 16:37:36.732278590 +0200
+@@ -516,8 +516,11 @@ wtf_size_t NGGridLayoutAlgorithm::BuildG
+                                 row_auto_repetitions);
+ 
+   bool has_nested_subgrid = false;
+-  auto& [grid_items, layout_data, subtree_size] =
+-      sizing_tree->CreateSizingData();
++
++  auto& workaround_clang_bug = sizing_tree->CreateSizingData();
++  auto& grid_items = workaround_clang_bug.grid_items;
++  auto& layout_data = workaround_clang_bug.layout_data;
++  auto& subtree_size = workaround_clang_bug.subtree_size;
+ 
+   if (!must_ignore_children) {
+     // Construct grid items that are not subgridded.
+@@ -1540,8 +1543,10 @@ void NGGridLayoutAlgorithm::InitializeTr
+     NGGridSizingTree* sizing_tree) const {
+   DCHECK(sizing_tree && current_grid_index < sizing_tree->Size());
+ 
+-  auto& [grid_items, layout_data, subtree_size] =
+-      sizing_tree->At(current_grid_index);
++  auto& workaround_clang_bug = sizing_tree->At(current_grid_index);
++  auto& grid_items = workaround_clang_bug.grid_items;
++  auto& layout_data = workaround_clang_bug.layout_data;
++  auto& subtree_size = workaround_clang_bug.subtree_size
+ 
+   auto InitAndCacheTrackSizes = [&](GridTrackSizingDirection track_direction) {
+     InitializeTrackCollection(opt_subgrid_data, track_direction, &layout_data);

chromium.spec

@@ -362,6 +362,8 @@ Patch300: chromium-113-rhel8-force-disable-use_gnome_keyring.patch
 
 # workaround for bug in clang 14 with c++20 on rhel9, linker errors std::u16string
 Patch301: chromium-112-workaround-llvm14-c++20-epel8.patch
+# workaround for clang bug, https://github.com/llvm/llvm-project/issues/57826
+Patch302: chromium-113-workaround_clang_bug-structured_binding.patch
 
 # Use chromium-latest.py to generate clean tarball from released build tarballs, found here:
 # http://build.chromium.org/buildbot/official/
@@ -949,9 +951,14 @@ udev.
 %patch -P300 -p1 -b .disblegnomekeyring
 %endif
 
-%if %{clang} && 0%{?rhel} == 8
+%if %{clang}
+%if 0%{?rhel} == 8
 %patch -P301 -p1 -b .clang14_c++20
 %endif
+%if 0%{?rhel} || 0%{?fedora} < 38
+%patch -P302 -p1 -b .workaround_clang_bug-structured_binding
+%endif
+%endif
 
 # Change shebang in all relevant files in this directory and all subdirectories
 # See `man find` for how the `-exec command {} +` syntax works